1Thomas Jefferson to Albert Gallatin, 24 November 1818 (Jefferson Papers)
political economy; TJ on study of [index entry]
2Thomas Jefferson to John Adams, 19 January 1819 (Jefferson Papers)
political economy; TJ on study of [index entry]
3Thomas Jefferson to William E. Richmond, 25 December 1819 (Jefferson Papers)
political economy; TJ on study of [index entry]